Restructuring Initiatives Restructuring Initiatives (Charges Reportable by Business Segment for $400M Cost Savings Initiative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended	12 Months Ended			36 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Charges recorded to date
$400M Cost Savings Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	$ 0.2	$ 4.4	$ 1.6		$ 82.0	$ 51.0	$ 48.5	$ 187.7
Estimated charges to be incurred on approved initiatives								2.5
Total expected charges on approved initiatives								190.2
$400M Cost Savings Initiative [Member] | Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	(0.5)	0.0	(0.4)		24.5	11.1	12.9	47.6
Estimated charges to be incurred on approved initiatives								(0.3)
Total expected charges on approved initiatives								47.3
$400M Cost Savings Initiative [Member] | Europe Middle East & Africa [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	(1.0)	0.2	0.1		19.9	15.6	1.1	35.9
Estimated charges to be incurred on approved initiatives								0.0
Total expected charges on approved initiatives								35.9
$400M Cost Savings Initiative [Member] | North America [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	1.9	4.9	1.6		14.0	5.3	18.0	45.7
Estimated charges to be incurred on approved initiatives								2.5
Total expected charges on approved initiatives								48.2
$400M Cost Savings Initiative [Member] | Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	(0.2)	(0.1)	0.6		6.5	1.3	12.9	21.0
Estimated charges to be incurred on approved initiatives								0.3
Total expected charges on approved initiatives								21.3
$400M Cost Savings Initiative [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Charges recorded to date	$ 0.0	$ (0.6)	$ (0.3)		$ 17.1	$ 17.7	$ 3.6	37.5
Estimated charges to be incurred on approved initiatives								0.0
Total expected charges on approved initiatives								$ 37.5